First off, long time lurker and admirer of the stuff that gets posted here daily, hoping that you guys can save me some hassle with a school event.So, this year I've been put in charge of organising our school's annual Yr 11 dinner / dance and need to create an atmosphere involving smoke for the theme. Normally I'd just go out and buy or rent a smoke machine but the problem is our budget, I live in Kuwait and so any smoke machine would have to be imported (shipping and customs are expensive owing to the weight and we have a tight schedule) or rented at an exorbitantly high price (it's actually cheaper to buy a smoke machine, pay the associated costs and then sell it off to these companies than rent one of their machines). So some of the other Sixth Formers hit upon the idea of building a homemade smoke machine that uses dry ice. I have a few questions relating to the viability right off the bat;How effective would this be, in terms of cubic metres of smoke produced per second (approximately)? I've read that 1lb of dry ice should give about 2-3 minutes of fog.Would this even be safe? Dry ice sublimates directly to carbon dioxide (producing the 'fog') and so I can't imagine filling a hall with CO2 for two hours is going to go down well with the school's management from a safety perspective.Assuming it is safe, what amount of dry ice would I need to create a layer of smoke about 50cm tall in a hall measuring approximately 10x30x50? How much can I expect to have to budget for dry ice?Secondly, how could we contain and transport the dry ice prior to the event? Would we need to make it on the day and at the venue?Lastly, would filling a metal container with hot water and adding dry ice cubes every few minutes be an effective delivery strategy? Would it lead to all the fog simply collecting around the pot or would it spread out evenly across the room? Also, what kind of warm up time should I be expecting?Thank you in advance. via /r/DIY http://ift.tt/2zAQd9Z
